Pressing machine



.lune`23," 1925.

H. E. COHEN PRESSING MACHINE Filed Jan. 2. 192.3

2 Shee ts-Sheet 1 Amm/EVS.

Y June 23, .1925.

H. E. COHEN PRESSING MACHINE Fled Jan. 2. 1923 2 Sheets-Sheet 2 INVENTOR 1 ATTORNEYS.

To all whom it may concern.'

Patented .lune 23, 1925.

HYMAN E. COHEN, OF

NEW YORK, N. Y. MACHINERY CGRPORATION, OF NEW Y ASSIGNOB, T0' UNITED STATES HOFFMAN RK, N. Y., A CORPORATION OF DELAWARE.

PRESSIN'G MACHINE.

Application Med anuaxy 2, 1928. Serial No. 610,259.

Be it know that I, Hman E. Comm, a. citizen of the United States, residing at New York, in the county of Queens and State of New York, have invented certain new and useful Improvements in Pressing Machines, of which the following is aspecification. Y

This invention pertains to garment presses and more particularly to the control mechanism in that type wherein an initial relatively light pressure between the pressing elements is effected followed by a heavy pressure, which latter effectually fiattens the seams, edges, or the like of the gai-mentheing operated upon. In machines of this type the initial pressure between the pressing elements is usually effected through the actuation of a pedal by the operator and the final ieavy pressure through the agency of a power mechanism operated by an electric motor.

The main object of the present invention is to provide means under the control of the operator whereby the initiation, duration and release of the heavy pressure may be controlled as may be found desirable. Ordinarily in presses of the type above refcrred to it has been the usual practice to effect the application and release of the l eavy pressure through the use of a special automatically operated switch or commutatur operating in timed relation with other portions of the mechanism, whereas in the instant case the control -is such that the initiation, duration and release of the final heavy pressure is directly under the control of the operator.

The invention is illustrated in connection with a press of a type well known in the ant, wherein,-

Fig. 1 is a side elevation of the press withA the parts in such position that final heavy pressure is bolug applied;

Fig. 2 a rear elevation of a portion of the main frame, the power applying means, and the switch control mechanism;

F ig. 3 a horizontal sectional on theline 3 3 of Fig.`4; and

F igs.l 4 and 5 elevations of the switch and its control means illustrating the parts 1n two different positions The press shown is substantially the same as that set forth and claimed in Letters Patent No. 1,426,120, dated August 1 5, 1922, to

view taken lever 4 ad'acent its rear end .ciprocation in 4a Spencer and Geldhof, to which reference is made. It comprises a rigid frame 1 carryin g at its forward upper portion a buck 2 with which cooperates a head 3. Said head isattached to the forward end of a lever 4 fulcrumed at 5 in the main frame. A toggle, comprising links 6 and 7, is employed to rock the lever to bring the head into pressing relation to the buck, the upper end of link 6 being pivotally'connected to a compensating spring 8 ing employed as is usual. The lower end of toggle, link 7 is pivotally counectedat 9 to a lever 10 fulcrumed at 11 to the main frame 1.

To close th e press, a second toggle, comprising a pair ploved, link 12 being pivotally connected to link 7 while the forward end of link 13 is pivotally attached at 14 to the frame 1. A link 15 attached to link 13 extends downwardly therefrom and is pivotally connected to a foot lever 16 fiilcrumcdupon a power shaft 17 mounted in suitable bearings in frame 1. The forward end of lever 10A is bifurcatcd and straddles a cam 18 secured to the power shaft. Motion is imparted to vthe power shaft and consequently to cam 18 through a gear 19 secured to the shaft. :A pinion 20 meshes with the gear, said pinion being secured to a shaft 21 which likewise carries a worm gear 22, the latter being in mesh with a worin 23 driven by an electric motor'24.

Secured t0\ the main frame 1 is a switch box 25 in which is mounted a switch arm 25a, Fig. 3, adapted to close the circuit to the motor when the switch is in its uppermost or its'lowermost position. Suitable leads, shown in Fig. 1, extend from the switch to the motor. The contact arm of the switch is secured to a shaft 26 journaled 'in the switch box body and an arm or lever 27 is affixed to the outer end thereof. Suitable stops, as 28 and 29, limit the movement of said lever 27 in its upward and downward movements or when the lever reaches such position that the circuit is closed through the switch arm. Mounted for vertical repair of lugs or brackets ie and 31, is a rod 32, having secured thereto a collar A coil spring 34 has one end attached to said collar and its opposite end to a pin or stud 35 extending outwardly from the lever 27. To the lower end of the rod 32 there is pivotally connected a pitman or rod 36, which in turn is secured to a wrist pin 37 extending outwardly from a disk 38 secured to and rotatable with the shaft 17. As above noted, this shaft is rtated through the gearing interposed between it and the motor 24. The switch box carries a two-armed bracket 39, Ain which is slidably supported one end of a stop rod 40, a sprinr 41 coacting with a collar 42 secured to t e rod, serving to move the rod endwise and project its inner end into the path of the lever or arm 27, for a purpose wiich will presently appear. The outer end o the rod is pivotally connected to a hand lever 43 fulcrumed at its upper end to a bracket I44 secured to the under face of the table 45 of the machine.

In the use of the machine, the goods to be pressed havin been placed upon the buck 2, the head is lowered through the operator grasping a handle 46 secured to the head, and drawing the same downwardly. Pressure is then a plied to the outer end of the lever 16, whic i, acting throu h the link 15, draws the toggle links 12 an 13 down into the position shown in Fig. 1, thereby exerting an outward thrustagainst the member 7 of the main toggle, and applying pressure through the straightening of such toggle through the lever 4 to the head 3. This effects a moderate degree of ressure. If it then be desired to exert a lieavy pressure, the operator will grasp the handle 43 and draw the stop rod 40 outwardly, releasing its inner end from contact with the arm 27, permitting thearm 27 to be thrown downwardly through the agency of the spring 34, from the full line position, Fig. 4, to thc dotted line position. The cam 18 is at such time in its lowest position and the rod 36 is likewisein its lowestposition. Tlie arm 27. as it swings downwardly through the action of the sprin carries the switch arms into operative re ation with the lower pair of terminals in the switch box and current is permitted to flow to the motor 24, starting the same, and through the gearing, as above described, causing a rotation of the. shaft 17 and the cam carried thereby. As the cam rotates it rocks the lever 10 upon its {ulcrum 11, the lever being moved upwardlyv and, as a consequence, exerting a thrust upon the then straightened main toggle com rising the elements 6 and 7. Rotation o the shaft 17 imparts motion to the disk 38 and as a consequence the rod 36 is moved from the position shown in Fig. 4 to the position shown in Figs. 1 and 5. 'Lne s ring 34 will then move from the position s own in Fig. 4to the osition shown in Figs. 1 and 5, and will ave a. tendency to draw the arm 27 upwardly and break ,the switch and cont the current. H the stop cantly interru Manilow` tostandiniinnermoet maratea position throu h the action of the spring 41, the lever 27 wi l contact the inner end o 'the stop rod 40 and will be held in the position shown in Fig. 5.- Consequently the current iiow will be interrupted and the motor come to rest, leaving the heavy pressure mechanism in that position where it will continue to exert such heavy pressure. This position may be maintained as long as desired, and when the heavy ressure is. to be released, the operator nee only draw the lever 48 outwardly and immediately the spring- 34 will snap the arm 27 upwardly against the fixed stop 28 and again restore the current to the circuit and to the-motor through the upper switch terminals. The parts would then bein the position shown in Fig. 1 and operation of the motor would rotate the cam 18 and as a consequence lmove the lever 10 downwardly and relieve the parts from the heavy pressureV which had been previously exerted thereon. Ifit be desired to only have the heavy pressure momentarily exerted, all that is necessary to do is to have the operator hold the stop rod 40 out of the path of movement of the arm 27 so that it will pass from the dotted line where the current is on and the motor is operating, to eifect final pressure, to the uppermost position shown in Fig. 1, which will e'ect a continuous operation of the motor until such time as the cam has made a com plete cycle.. In other words, the rod 36 will pass from the position shown in Fig. 4 upwardly .to the position shown in Fig. 1I and back again to the position shown in Fig. 4, the current being interrupted at this time by the withdrawal of the switch blades from the switch terminals and the arm coming to rest upon the inner end of the stoprod 40 which has been in the meantime allowed t0 move inwardly- What is claimed is,- 1. In a pressing machine the combination of relatively movable cooperating position, Fig. 4,

pressing elements; operator actuated means for bringing said elements into pressing relation; power actuated means for eiecting a final heavy pressure between said elements; an electric motor for actuating said means; a switch controlling the motor circuit; means actuated by the wer sctuated means for opening and c osing the switch; and a stop under the control of the o rater acting to normally arrest the switc in its open position.

2. In a pressing machine the combination .of relatively movable cooperating pressing elements; operator actuated means for bringing said elements into pressing relation; power actuated means forA eiecting a final heavy preure between said elements; an electric motor for actuating said means; a dopble. throw switch contro ling the motor circuit; means actuated by the lpower actuated means for opening and closin the switch; and a stop under the contro of the o rator acting to normally arrest the switclimin its open position. t

3. In a pressing machine, the combination of relative y movable cooperating pressing elements; means for bringing said elements into pressing relation; means including an electric motor acting through said aforesaid means to effect a relatively heavy pressure between said pressing elements; aswiteh controlling the motor circuit; means actuated by the lieav pressure effecting means tending to close t ie switch; and a stop under the control of the operator normally acting to hold the switch in its open iosition.

4. n a pressing machine, the combination of. relatively movable cooperating pressing elements; operator actuated means for bringing said elements into pressing relation; a cam serving when moved to cect through said operator actuated means a heavy pressure between said pressing elcments; an electric'niotor for actuating said Lani; a switch for controlling the motor cirenit; means movable in timed relation with the cam serving to close the switch; and a releasable sto i under the control of the 0perator normally serving to hohl the switch in its open position.

5. In a pressing machine` the combination of relatively movable cooperating pressing elements; operator actuated nii-ans for bringing said elements into pressing relation; power actuated means including an electric motor for effecting a subsequent heavy pressure; a switch controllingr the motor circuit; means associated with said power means acting to close the switch both when the power means is in its release position and in its heavy pressure position; and a stop under the control of the operator normally acting to hold the switch open.

6. In a pressing machine, the combina- `sition and in its heavy power means acting to close the switch both a when the power means is in its release popressure position; an arm connected to the switch and movable therewith; a rod, one end of which normally stands in the path of movement of said .ariiig and means, under the control of the operator for moving the rod out of arresting relation to the arm.

7. In a pressing machine, the combination of relatively movable coo Aerating pressing elements; operator actuate means for bringing said elements into pressing relation; power actuated means including an electric motor for effecting a subsequent heavy pressure; a switch controlling the motor circuit; means associated with said power means acting to close the switch both when the power means is in its rek-ase position .and in its heavy pressure position; an arm connected to the switch and movable therewith; and means, under the control of the operator, for normally arresting the movement of said arm and holding the switch open.

8. In a power operated mechanism, the combination of a, movable clement; power actuated means, including an electric motor, for actuating said element; a switch serving to control the flow of current to the motor; :means cooperating with the power mechanism for movingithe switch; and operator controlled means for arrestin the switch and holding it in its open position.

In testimony whereof I have signed my name to this specification.

HYMAN E. COHEN. 

